Shruthi - DIY resources

This section contains all the information allowing you to build your own Shruthi or hack its firmware.

The Shruthi contains two section: a digital section (“control board” or “digital board”), containing the display, main microcontroller, switches and pots ; and an analog section (“filter board”) hosting the VCF, VCA, input mixer and the output stage. Several variants of the filter board are available to provide a broad range of sounds.

Licensing information

Schematics and PCBs of the filter boards ; and documentation/analyses are released under a Creative Commons cc-by-sa license. Firmware code is released under a GPL3.0 License. Some of the (now deprecated) filter boards had been released under a cc-by-nc-sa license.